sensors Mode-S transponder

AF4FB3

ICAO 24-bit transponder address

Currently assigned to 18-20985 · SIKORSKY UH-60 Black Hawk

Hex
AF4FB3
Octal
53647663
Decimal
11,489,203
Tail
18-20985
Type
H60
No current signal · last broadcast 3d ago
Flights observed
24
Distinct callsigns
7
Country
-
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S AF4FB3.

Callsign history 7 distinct

Callsign Airline Flights Last seen
SHINR20 - 7 2026-07-10
SHINR55 - 6 2026-06-06
SHINR75 - 4 2026-06-01
SHINR28 - 3 2026-06-17
SHINR65 - 2 2026-06-02
SHINR19 - 1 2026-06-05
SHINER69 - 1 2026-05-28

Recent flights last 24

DateFlightRouteTakeoffLandingDuration
2026-07-10 SHINR20 - Jul 10, 20:20 UTCJul 10, 20:30 UTC10m
2026-07-10 SHINR20 - Jul 10, 14:55 UTCJul 10, 15:10 UTC15m
2026-06-30 SHINR20 AUS → AUS Jun 30, 01:55 UTCJun 30, 04:00 UTC2h 5m
2026-06-29 SHINR20 AUS → AUS Jun 29, 19:24 UTCJun 29, 20:54 UTC1h 30m
2026-06-17 SHINR28 - Jun 17, 22:50 UTCJun 17, 23:40 UTC50m
2026-06-17 SHINR28 - Jun 17, 14:05 UTCJun 17, 14:15 UTC10m
2026-06-17 SHINR28 - Jun 17, 12:30 UTCJun 17, 12:55 UTC25m
2026-06-06 SHINR55 - Jun 6, 18:45 UTCJun 6, 19:19 UTC35m
2026-06-06 SHINR55 - Jun 6, 17:54 UTCJun 6, 18:35 UTC40m
2026-06-06 SHINR55 - Jun 6, 16:45 UTCJun 6, 17:24 UTC40m
2026-06-06 SHINR55 AUS → AUS Jun 6, 15:59 UTCJun 6, 16:34 UTC35m
2026-06-05 SHINR19 AUS → AUS Jun 5, 02:15 UTCJun 5, 04:20 UTC2h 5m
2026-06-02 SHINR65 - Jun 2, 18:45 UTCJun 2, 20:15 UTC1h 30m
2026-06-02 SHINR65 - Jun 2, 14:05 UTCJun 2, 15:20 UTC1h 15m
2026-06-01 SHINR75 - Jun 1, 21:25 UTCJun 1, 22:40 UTC1h 15m
2026-06-01 SHINR75 - Jun 1, 18:50 UTCJun 1, 20:10 UTC1h 20m
2026-05-31 SHINR75 - May 31, 21:30 UTCMay 31, 22:20 UTC50m
2026-05-31 SHINR75 AUS → MDA May 31, 20:05 UTCMay 31, 20:35 UTC30m
2026-05-28 SHINER69 AUS → AUS May 28, 19:20 UTCMay 28, 21:00 UTC1h 40m
2026-04-30 SHINR55 - Apr 30, 19:25 UTCApr 30, 19:50 UTC25m
2026-04-28 SHINR55 - Apr 28, 20:25 UTCApr 28, 21:30 UTC1h 5m
2026-04-17 SHINR20 - Apr 17, 19:40 UTCApr 17, 20:15 UTC35m
2026-04-17 SHINR20 - Apr 17, 15:20 UTCApr 17, 15:50 UTC30m
2026-04-17 SHINR20 - Apr 17, 15:10 UTCApr 17, 15:15 UTC5m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the 18-20985 page for operator, model, and routing details .

Mode-S AF4FB3 frequently asked

What is Mode-S code AF4FB3?
AF4FB3 is an ICAO 24-bit transponder address. Assigned to 18-20985.
Is AF4FB3 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AF4FB3, octal 53647663, decimal 11,489,203.
What flights does AF4FB3 operate?
Mode-S AF4FB3 has broadcast 7 distinct callsigns, including SHINR20, SHINR55, SHINR75, SHINR28, SHINR65.